Title :
Energy-efficient user relaying scheme in metropolitan mmWave mobile broadband system
Author :
JoonSan Kim ; Seonghwa Yun ; Seung Hyun Jeon ; Ae-Soon Park ; Jun Kyun Choi
Author_Institution :
Dept. of Electr. Eng., KAIST, Daejeon, South Korea
Abstract :
Radio frequency spectrum within 3-300 GHz has been investigated for the next generation of mobile broadband system. The mmWave mobile broadband (MMB) system is expected to achieve high capacity by utilizing immense bandwidth. However, high attenuation property of mmWave generates outage zone where the signal does not reach frequently in MMB system. To cover outage zone, relay operation has been suggested as one of the solutions while improving the energy efficiency. However, there is no analysis on the energy efficiency of user relay considering outage zone in metropolitan MMB system. In this paper, we suggest the analytical model of user relay in MMB system with outage zone. Furthermore, we propose the energy-efficient user relaying scheme to minimize the transmission power of metropolitan MMB system. Simulation results show that user relay improves the energy efficiency and reduces down outage zone in metropolitan MMB system.
Keywords :
broadband networks; metropolitan area networks; millimetre wave propagation; minimisation; next generation networks; relay networks (telecommunication); telecommunication power management; analytical user relay model; attenuation property; energy efficient user relaying scheme; frequency 3 GHz to 300 GHz; metropolitan MMB system; metropolitan mm wave mobile broadband system; next generation network; outage zone; radiofrequency spectrum; relay operation; transmission power minimization; Analytical models; Bandwidth; Broadband antennas; Broadband communication; Mobile communication; OFDM; Relays; Energy efficiency; mmWave; outage zone; the Hungarian method; user relay;
Conference_Titel :
Personal, Indoor, and Mobile Radio Communication (PIMRC), 2014 IEEE 25th Annual International Symposium on
DOI :
10.1109/PIMRC.2014.7136370
